JP2560085Y2 - Transmission operating device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission operating device, and more particularly, to an output transmitting portion (connection) between a shift and select operating shaft and a shift operating rod which are arranged orthogonal to each other. Part).

[0002]

2. Description of the Related Art FIGS. 4 to 6 show the construction of a conventional transmission operating device. In these drawings, reference numeral 1 denotes a transmission operating booster, and 2 denotes an axial direction of the transmission operating device. The shift operation rod 3 to be actuated is a shift and select operation shaft arranged to be orthogonal to the shift operation rod 2 and configured to be actuated in the axial direction by an actuator (not shown). is there.

The operation of the conventional transmission operating device will now be described. First, change lever 4
(See FIG. 5) in the select direction, a select actuator (not shown) is actuated, and the shift and select operation shaft 3 is moved in the direction perpendicular to the paper surface of FIG. The gear shift lever 5 integrally attached to the gear 3 is indicated by an arrow A in FIG.
In the direction, thereby performing a predetermined selection operation.

[0004] Next, as the change lever 4 is operated in the shift direction, the booster 1 is operated. That is, the shift operation rod 2 is moved in the direction of arrow B in FIG. 4, and accordingly, the switching valve 6 shown in FIG. 5 is operated to supply compressed air to one of the pressure chambers 7, 8.
As a result, the piston rod 9 and this piston rod 9
The striker 10 (see FIG. 4) fixed to the control rod 2 is moved following the operation rod 2. At this time, the striker 10 comes into contact with and presses the gear shift lever 5 disposed at the predetermined select position as described above, so that the gear shift lever 5 is moved around the operation shaft 3 by the boosted operating force. At 6, it is turned in the direction indicated by arrow C. Accordingly, the operation shaft 3 is rotated about the axis thereof together with the gear shift lever 5 from the neutral position N by the angle α, whereby a predetermined shift operation (gear shift) is performed.

[0005]

In the conventional transmission operating device as described above, the operating force boosted by the booster 1 is transmitted to the gear shift lever 5 and the operating shaft 3 via the striker 10. Since the so-called striker system in which power is transmitted is adopted, there are the following problems.

That is, since the engagement point between the striker 10 and the gear shift lever 5 is located away from the axis of the shift operating rod 2, the bearings 11a, 11b (see FIG. 5), which results in a large friction loss. Further, since the striker 10 is loosely inserted into the hole 5a of the gear shift lever 5 as shown in FIG. 6, there is a problem that the play is connected to the play of the change lever 4.

The present invention has been made in order to solve such a problem, and an object thereof is to allow a shift (selection) stroke of a shift-and-select operation shaft for a select operation, while allowing a shift (select) operation. The present invention is to provide a transmission operating device having a configuration capable of efficiently transmitting an output of a shift operation rod and a stroke for a shift operation, and further greatly reducing a load on a bearing portion of the shift operation rod. .

[0008]

In order to achieve the above-mentioned object, in the present invention, a select operation is performed by moving a shift and select operation shaft in an axial direction, and a shift operation rod is moved in an axial direction. A transmission operating device for performing a shift operation by rotating the operation shaft about an axis along with the operation; (a) a first connecting rod having one end fixed to the operation shaft; b) a second connecting rod rotatably connected to the first connecting rod via one support shaft; and (c) an integral part of an end of the second connecting rod. A ball jig fitted to the operation rod in a state where the operation rod is allowed to move in a direction orthogonal to the axial direction of the operation rod. The operating shaft and the operating rod are connected to each other via a connecting mechanism consisting of: and the support shaft is disposed at right angles to the operating shaft and parallel to the operating rod, and a select operation is performed. In some cases, the first connecting rod is rotated about the support shaft with respect to the second connecting rod to allow movement of the operation shaft, and at the time of a shift operation, the output of the operation rod is output from the connecting mechanism. And transmitted to the operation shaft as a rotational force through the shaft.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a transmission operating device 20 according to the present invention.
The device 20 includes a shift and select operation shaft (gear shift shaft) 21 and a shift operation rod 22 which are arranged to be orthogonal to each other.

The operation shaft 21 is configured to be moved in the axial direction (selection direction) in accordance with the operation of the change lever 23. And this operation shaft 2
1 is connected to a transmission fork 2 via connecting members 24a and 24b.
The transmission bifurcated shaft 26 to which the gear 5 is fixed is disposed in a state orthogonal to this.

The shift operation rod 22 described above is
As shown in FIGS. 1 and 2, the transmission operating booster 27
It is configured to be operated by. The booster 27 is attached to a side wall of a casing (not shown) of the transmission with bolts, and the shift operation rod 22 is arranged orthogonal to the shift and select operation shaft 21. The one end 22a of the operation rod 22 is disposed directly below the one end 21a of the operation shaft 21. Then, as shown in FIGS.
The portions 1a and 22a are connected to each other via a connecting mechanism 35.

The connecting mechanism 35 includes first and second connecting rods 36 and 37, as shown in FIGS. 2 and 3, and these connecting rods 36 and 37 are connected to a single support rod. They are rotatably connected to each other about a shaft 38. That is, the lower end 36a of the first connecting rod 36 is bifurcated into a clevis shape, and the upper end 37a of the second connecting rod rod 37 is inserted between these branched portions. The support shaft 38 is inserted. Also, the second
A ball joint 39 is integrally attached to the lower end of the connecting rod 36.

Thus, the first connecting rod 3
6, the upper end 36b is integrally fixed to one end 21a of the operation shaft 21, and the support shaft 38 is arranged orthogonal to the operation shaft 21 and parallel to the operation rod 22.

Further, the second connecting rod 37
Is engaged with one end 22a of the operation rod 22. That is, the operation rod 22
A through hole 40 penetrating in the up-down direction is formed at one end 22a of the outer race 41. An outer race (outer ring) 41 is press-fitted and fixed in the through hole 40, and inside the outer race 41, An inner race (inner ring) 42 integrally fitted on the outer peripheral surface of the ball joint 39
Are slidably fitted in the axial direction (up and down direction) of the outer race 41.

[0016] In this example, same axis P ₁ the first and second connecting rods 36 and 37 as shown in FIGS. 2 and 3
When it is arranged on the upper side (neutral), the center point O ₁ of the ball joint 39 is aligned with the axis P of the operating rod 22.
₂ to be placed on.

In FIGS. 2 and 3, 43 and 4
4 is a ball joint 39 of the connecting mechanism 35
This is a telescopic boot that covers the portion and the support shaft 38, respectively. The other configuration is the same as the conventional one.

Next, the operation of the thus constructed transmission operating device 20 of the present embodiment will be described.

First, when the change lever 23 is switched in the select direction, the shift and select operation shaft 21 is urged in the direction of arrow D (select direction) in FIG. At this time, the connecting mechanism 35
The first connecting rod 36 can rotate relative to the second connecting rod 37 about the support shaft 38, and the ball joint 3
9 can move in the direction of arrow E (upward) in FIGS. 2 and 3, so that the first and second connecting rods 36,
Reference numeral 37 denotes a state where the support shaft 38 is relatively bent. That is, in this case, the support shaft 38 is moved as shown by a dashed line in FIG. 3 to tilt the first connecting rod 36 with respect to the second connecting rod, and the second connecting rod 37 It is placed on the distance L ₁ along the axis is moved to the upper position. Therefore, the movement of the operation shaft 21 in the direction of arrow D is allowed.

When the operating shaft 21 is operated in this manner, the transmission bifurcated shaft 26 is moved in the direction of arrow D from the neutral (N) position shown by the solid line in FIG. The position is selectively moved to a position, whereby a predetermined select operation is performed.

Thereafter, the change lever 23 is moved to, for example, 1
When the shift position is switched to the high-speed position, the shift operation rod 22 is slightly moved, for example, in the direction of arrow F (rightward) in FIGS. 1 and 2. Then, in response, the operating rod 22 is further moved in the direction of arrow F by the operating force boosted by the compressed air, and the operating force is applied to the ball joint 39 and the second connecting rod 37 accordingly. Is transmitted. At this time, since the support shaft 38 is parallel to the moving direction (stroke direction) of the operation rod 22, the second connecting rod rod 37 does not rotate relative to the first connecting rod 36. Both are integrally rotated about one point O ₂ (see FIG. 2) on the axis of the operation shaft 21. In this case,
Ball joint 39 and the second connecting rod 37 is moved by the direction of the arrow E F slight distance L ₂ as shown in FIG. Thus, the operation shaft 21 and the transmission fork shaft 26 are rotated about the axis of the operation shaft 21 in the direction of arrow G in FIGS. 1 and 2, whereby a predetermined shift operation is performed.

In the transmission operating device 20 as described above, the stroke for the selecting operation of the operating shaft 21 is allowed, and the stroke for the shifting operation of the operating rod 22 can be transmitted to the operating shaft 21 reliably. Since the connecting mechanism 35 having such a configuration is used, the selection operation and the shift operation can be performed without any trouble. In addition, since the engaging portion between the operating rod 22 and the connecting mechanism 35 is engaged via the ball joint 39, the output of the operating rod 22 is always in a direction perpendicular to the peripheral surface of the ball joint 39 (the center of the ball joint 39). ), And the stroke for the shift operation is very small (high efficiency).
Can be conveyed.

Although the ball joint 39 moves in a direction perpendicular to the axis of the operating rod 22 (direction of arrow E), the amount of movement is small.
The direction of the reaction force from the ball joint 39 to the operating rod 21 can be set to a direction substantially along the axis of the operating rod 21. Therefore, the load applied to the bearing portion of the cylinder body of the booster 27 that slidably supports the operation rod 21 can be significantly reduced.

As described above, one embodiment of the present invention has been described.
The present invention is not limited to the embodiments described above, and various modifications and changes are possible based on the technical idea of the present invention. For example, the outer race 41 and the inner race 4
2 may be omitted, and the ball joint 39 may be directly inserted into the through hole 40 of the operation rod 21 in a slidable state.

[0025]

As described above, according to the present invention, the first and second connecting rods rotatably connected to each other about one support shaft and the end of the second connecting rod are provided. The connecting mechanism including the ball joint connects the select and shift operation shaft and the shift operation rod to each other. Therefore, the relative position of the first and second connecting rods around the support shaft is adjusted. The stroke for the select operation of the operation shaft can be allowed by the relative rotation, and the stroke of the operation rod for the shift operation is changed by the operation force directed from the operation rod in a direction perpendicular to the peripheral surface of the ball joint. High efficiency transmission with low loss to the shaft. In addition, since the reaction force acting on the operating rod from the ball joint can be in a direction along the axis of the operating rod, the load on the bearing portion of the operating rod can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a transmission operating device according to the present invention.

FIG. 2 is an enlarged sectional view taken along line MM in FIG.

FIG. 3 is a side view of a connecting mechanism that connects a select and shift operation shaft and a shift operation rod to each other.

FIG. 4 is a partially cutaway front view of a conventional transmission operating device.

FIG. 5 is a cross-sectional view of the conventional transmission operating device described above.

FIG. 6 is a sectional view showing an arrangement relationship between a gear shift lever and a striker.

[Explanation of symbols]

 Reference Signs List 20 transmission operating device 21 shift and select operating shaft 22 shift operating rod 23 change lever 27 transmission operating booster 35 connecting mechanism 36 first connecting rod 37 second connecting rod 38 support shaft 39 ball joint 40 Through hole 41 Outer race 42 Inner race

Claims (1)

(57) [Scope of request for utility model registration] 1. A select operation is performed by moving a shift-and-select operation shaft in an axial direction, and by rotating the shift operation rod in an axial direction, the operation shaft is rotated about the axis. In a transmission operating device adapted to perform a shift operation, (a) a first connecting rod having one end fixed to the operation shaft; and (b) a first connecting rod via one support shaft. A second connecting rod rotatably connected to the second connecting rod;
(C) a ball joint that is integrally disposed at an end of the second connecting rod and that is fitted to the operation rod in a state where movement in the direction orthogonal to the axial direction of the operation rod is permitted; And a connecting mechanism consisting of: connecting the operating shaft and the operating rod to each other, arranging the support shaft at right angles to the operating shaft and parallel to the operating rod, and performing a select operation. The first connecting rod is pivoted about the support shaft with respect to the second connecting rod to allow movement of the operating shaft, and at the time of a shift operation, the output of the operating rod controls the connecting mechanism. A transmission operating device configured to be transmitted as rotational force to the operating shaft via the transmission shaft.